Nocardia Rubra Cell Wall Skeleton in Combination With Prior Second- or Third-line Regimens for the Treatment of Potentially Hazardous Colorectal Cancer SD Status

NCT ID: NCT06356714

Last Updated: 2025-08-08

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: PHASE2
• Total Enrollment: 22 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-03-15
• Study Completion Date: 2027-10-01

Brief Summary

Evaluate the efficacy and safety of Nocardia rubra cell wall skeleton in combination with prior second- or third-line regimens for the treatment of potentially hazardous colorectal cancer SD(Stable Disease) status in the real world.

Detailed Description

This is a prospective interventional clinical trial investigating the efficacy and safety of Nocardia rubra cell wall skeleton in combination with prior second- or third-line regimens for the treatment of potentially hazardous colorectal cancer SD (Stable Disease) status in the real world.

Enrollment requirements were patients who had received prior second- or third-line therapy for advanced or metastatic colorectal cancer and presented with a potentially harmful SD status.

The potentially hazardous SD (Stable Disease) state is defined as an increase in SLD (Sum of Longest Diameters) by less than 20% according to RECIST 1.1 criteria, with an absolute increase of SLD ≤ 5mm from the nadir; a serum CEA (Carcinoembryonic Antigen) level below 10.0 ng/ml during stable disease, with two consecutive measurements of 10 ng/ml or more (with a testing interval of at least one month); or a serum CEA level of 10 ng/ml or more during stable disease, with a gradual increase in CEA after two consecutive measurements (with a testing interval of at least one month); a serum CA19-9 level below 60.0 ng/ml during stable disease, with two consecutive measurements of 60 ng/ml or more (with a testing interval of at least one month); or a serum CEA level of 60 ng/ml or more during stable disease, with a gradual increase in CEA after two consecutive measurements (with a testing interval of at least one month). Meeting any one of the above criteria can be considered as the presence of a potentially hazardous SD state.

Conditions

Colorectal Cancer; Colorectal Neoplasms

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Nocardia Rubra Cell Wall Skeleton +prior Second- or Third-line Regimens

The patient has previously received second- or third-line treatment for advanced or metastatic colorectal cancer and has developed a potentially hazardous SD (Stable Disease) status. They will add to the original treatment regimen of Nocardia Rubra Cell Wall Skeleton.

Group Type: EXPERIMENTAL

Nocardia Rubra Cell Wall Skeleton in Combination With Prior Second- or Third-line Regimens

Intervention Type: DRUG

Nocardia Rubra Cell Wall Skeleton 200 mcg-400 mcg, 0.3 ml diluted in water for injection or lidocaine, was injected subcutaneously every 2 or 3 weeks.

Efficacy was evaluated every 2 cycles according to RECIST 1.1 criteria. Patients are enrolled and given this study regimen of drugs on top of their prior second- or third-line regimen until disease progression or intolerable toxicities occur; or the patient requests to be discharged.

Interventions

Nocardia Rubra Cell Wall Skeleton in Combination With Prior Second- or Third-line Regimens

Nocardia Rubra Cell Wall Skeleton 200 mcg-400 mcg, 0.3 ml diluted in water for injection or lidocaine, was injected subcutaneously every 2 or 3 weeks.

Efficacy was evaluated every 2 cycles according to RECIST 1.1 criteria. Patients are enrolled and given this study regimen of drugs on top of their prior second- or third-line regimen until disease progression or intolerable toxicities occur; or the patient requests to be discharged.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

1. Age ≥ 18 years old, gender is not limited;

2. Colorectal adenocarcinoma confirmed by pathologic histology and/or cytology and imaging;

3. Have 1 or more measurable lesions with a longest diameter of at least 10 mm as determined by spiral CT scanning; and a diameter of at least 20 mm as determined by conventional CT scanning (Criteria for the Evaluation of Efficacy in Solid Tumors, i.e., RECIST Criteria, version 1.1);

4. Prior second- or third-line therapy for advanced or metastatic colorectal cancer with potentially harmful SD status. The potentially hazardous SD (Stable Disease) state is defined as an increase in SLD (Sum of Longest Diameters) by less than 20% according to RECIST 1.1 criteria, with an absolute increase of SLD ≤ 5mm from the nadir; a serum CEA (Carcinoembryonic Antigen) level below 10.0 ng/ml during stable disease, with two consecutive measurements of 10 ng/ml or more (with a testing interval of at least one month); or a serum CEA level of 10 ng/ml or more during stable disease, with a gradual increase in CEA after two consecutive measurements (with a testing interval of at least one month); a serum CA19-9 level below 60.0 ng/ml during stable disease, with two consecutive measurements of 60 ng/ml or more (with a testing interval of at least one month); or a serum CEA level of 60 ng/ml or more during stable disease, with a gradual increase in CEA after two consecutive measurements (with a testing interval of at least one month). Meeting any one of the above criteria can be considered as the presence of a potentially hazardous SD state.

5. The general condition score of the Eastern Cooperative Oncology Group (ECOG) is 0 or 1;

6. Expected survival ≧3 months;

7. Blood, liver and kidney function within 7 days prior to screening: absolute neutrophil count ≥ 1.5 x 109 /L; hemoglobin ≥ 9.0 g/dl; platelet count ≥ 100 x 109 /L; total bilirubin ≤ 1.5 times the upper limit of normal (ULN); gammaglutaminase and gammaglutaminase ≤ 3.0 x ULN (≤ 5 x ULN for patients with hepatic metastases); alkaline phosphatase ≤ 3 x ULN. phosphatase ≤ 3 x ULN (≤ 5 x ULN in patients with liver metastases); serum creatinine ≤ 1.5 x ULN;

8. Agreed to sign the informed consent form;

Exclusion Criteria

1. Allergic constitution;

2. With comorbid diabetes;

3. Active clinically severe infection;

4. Any other conditions deemed exclusionary by the investigator.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Sun Jing

OTHER

Sponsor Role: lead

Responsible Party

Sun Jing

chief physician、professor

Responsibility Role: SPONSOR_INVESTIGATOR

Locations

the First Affiliated Hospital of Nanjing Medical University

Nanjing, Jiangsu, China

Site Status: RECRUITING

Countries

China

Central Contacts

Jing Sun

Role: CONTACT

sunj@njmu.edu.com

13914704178

Facility Contacts

Jing Sun

Role: primary

sunj@njmu.edu.com

13914704178

Other Identifiers

13914704179

Identifier Type: -

Identifier Source: org_study_id